BR112013018737A2 - quantization parameter change signaling for high efficiency video coding (hevc) encoded units - Google Patents

quantization parameter change signaling for high efficiency video coding (hevc) encoded units

Info

Publication number
BR112013018737A2
BR112013018737A2 BR112013018737A BR112013018737A BR112013018737A2 BR 112013018737 A2 BR112013018737 A2 BR 112013018737A2 BR 112013018737 A BR112013018737 A BR 112013018737A BR 112013018737 A BR112013018737 A BR 112013018737A BR 112013018737 A2 BR112013018737 A2 BR 112013018737A2
Authority
BR
Brazil
Prior art keywords
quantization parameter
hevc
high efficiency
video coding
efficiency video
Prior art date
Application number
BR112013018737A
Other languages
Portuguese (pt)
Inventor
Marta Karczewicz
Rajan L Joshi
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112013018737A2 publication Critical patent/BR112013018737A2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

sinalização de mudanças de parâmetro de quantização para unidades codificadas em codiciação de vídeo de alta eficiência (hevc) em um exemplo, esta descrição descreve um método de decodificação de dados de vídeo. o método compreende receber uma unidade de codificação (cu) de dados de vídeo codificados. a cu é particionada em um conjunto de unidades codificadas (cus) dimensionada em bloco de acordo com um esquema de particionamento por quadtree e decodifica um ou mais elementos de sintaxe para a cu para indicar uma mudança em um parâmetro de quantização para a cu relativa a um parâmetro de quantização previsto para cu apenas se a cu inclui quaisquer coeficientes de transformada não-zero. os um ou mais elementos de sintaxe são decodificados a partir de uma posição dentro dos dados de vídeo codificados após uma indicação de que a irá incluir, pelo menos, alguns coeficientes de transformada não-zero, e antes dos coeficientes de transformada para a cu.quantization parameter change signaling for high efficiency video coding (hevc) encoded units in one example, this description describes a method of decoding video data. the method comprises receiving a coding unit (cu) of encoded video data. cu is partitioned into a block-sized set of encoded units (cus) according to a quadtree partitioning scheme and decodes one or more syntax elements into cu to indicate a change in a quantization parameter for cu relative to a quantization parameter predicted for cu only if cu includes any non-zero transform coefficients. one or more syntax elements are decoded from a position within the encoded video data after an indication that it will include at least some non-zero transform coefficients, and before the transform coefficients for cu.

BR112013018737A 2011-01-24 2012-01-12 quantization parameter change signaling for high efficiency video coding (hevc) encoded units BR112013018737A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161435750P 2011-01-24 2011-01-24
US13/252,600 US20120189052A1 (en) 2011-01-24 2011-10-04 Signaling quantization parameter changes for coded units in high efficiency video coding (hevc)
PCT/US2012/021096 WO2012102867A1 (en) 2011-01-24 2012-01-12 Signaling quantization parameter changes for coded units in high efficiency video coding (hevc)

Publications (1)

Publication Number Publication Date
BR112013018737A2 true BR112013018737A2 (en) 2016-10-25

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Family Applications (1)

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BR112013018737A BR112013018737A2 (en) 2011-01-24 2012-01-12 quantization parameter change signaling for high efficiency video coding (hevc) encoded units

Country Status (15)

Country Link
US (1) US20120189052A1 (en)
EP (1) EP2668783A1 (en)
JP (1) JP2014506752A (en)
KR (1) KR101540529B1 (en)
CN (1) CN103329529B (en)
AU (1) AU2012209501B2 (en)
BR (1) BR112013018737A2 (en)
CA (1) CA2824506C (en)
IL (1) IL227286A (en)
MY (1) MY165722A (en)
RU (1) RU2546590C2 (en)
SG (1) SG191404A1 (en)
TW (1) TWI520580B (en)
UA (1) UA109048C2 (en)
WO (1) WO2012102867A1 (en)

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Publication number Publication date
AU2012209501B2 (en) 2016-02-18
AU2012209501A1 (en) 2013-08-01
CN103329529A (en) 2013-09-25
UA109048C2 (en) 2015-07-10
WO2012102867A1 (en) 2012-08-02
IL227286A0 (en) 2013-09-30
RU2546590C2 (en) 2015-04-10
US20120189052A1 (en) 2012-07-26
CN103329529B (en) 2016-11-02
CA2824506A1 (en) 2012-08-02
TW201246938A (en) 2012-11-16
IL227286A (en) 2017-09-28
TWI520580B (en) 2016-02-01
SG191404A1 (en) 2013-08-30
RU2013139174A (en) 2015-03-10
EP2668783A1 (en) 2013-12-04
KR20130119489A (en) 2013-10-31
KR101540529B1 (en) 2015-07-29
CA2824506C (en) 2016-09-06
MY165722A (en) 2018-04-20
JP2014506752A (en) 2014-03-17

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B15K Others concerning applications: alteration of classification

Ipc: H04N 19/124 (2014.01), H04N 19/176 (2014.01), H04N

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements